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ovs_windows.go
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ovs_windows.go
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package daemon
import (
"errors"
"fmt"
"net"
"strings"
"time"
"github.com/Microsoft/hcsshim"
"github.com/containernetworking/plugins/pkg/hns"
"k8s.io/apimachinery/pkg/types"
"k8s.io/klog/v2"
kubeovnv1 "github.com/kubeovn/kube-ovn/pkg/apis/kubeovn/v1"
"github.com/kubeovn/kube-ovn/pkg/ovs"
"github.com/kubeovn/kube-ovn/pkg/request"
"github.com/kubeovn/kube-ovn/pkg/util"
)
func (csh cniServerHandler) configureDpdkNic(podName, podNamespace, provider, netns, containerID, ifName, mac string, mtu int, ip, gateway, ingress, egress, sharedDir, socketName string) error {
return errors.New("DPDK is not supported on Windows")
}
func (csh cniServerHandler) configureNicWithInternalPort(podName, podNamespace, provider, netns, containerID, ifName, mac string, mtu int, ip, gateway string, isDefaultRoute, detectIPConflict bool, routes []request.Route, dnsServer, dnsSuffix []string, ingress, egress, DeviceID, nicType, latency, limit, loss, jitter string, gwCheckMode int, u2oInterconnectionIP string) (string, error) {
return ifName, csh.configureNic(podName, podNamespace, provider, netns, containerID, "", ifName, mac, mtu, ip, gateway, isDefaultRoute, detectIPConflict, routes, dnsServer, dnsSuffix, ingress, egress, DeviceID, nicType, latency, limit, loss, jitter, gwCheckMode, u2oInterconnectionIP)
}
func (csh cniServerHandler) configureNic(podName, podNamespace, provider, netns, containerID, vfDriver, ifName, mac string, mtu int, ip, gateway string, isDefaultRoute, detectIPConflict bool, routes []request.Route, dnsServer, dnsSuffix []string, ingress, egress, DeviceID, nicType, latency, limit, loss, jitter string, gwCheckMode int, u2oInterconnectionIP string) error {
if DeviceID != "" {
return errors.New("SR-IOV is not supported on Windows")
}
hnsNetwork, err := hcsshim.GetHNSNetworkByName(util.HnsNetwork)
if err != nil {
klog.Errorf("failed to get HNS network %s: %v", util.HnsNetwork)
return err
}
if hnsNetwork == nil {
err = fmt.Errorf("HNS network %s does not exist", util.HnsNetwork)
klog.Error(err)
return err
}
if !strings.EqualFold(hnsNetwork.Type, "Transparent") {
err = fmt.Errorf(`type of HNS network %s is "%s", while "Transparent" is required`, util.HnsNetwork, hnsNetwork.Type)
klog.Error(err)
return err
}
ipAddr := util.GetIpWithoutMask(ip)
sandbox := hns.GetSandboxContainerID(containerID, netns)
epName := sandbox[:12]
_, err = hns.AddHnsEndpoint(epName, hnsNetwork.Id, containerID, netns, func() (*hcsshim.HNSEndpoint, error) {
ipv4, ipv6 := util.SplitStringIP(ipAddr)
endpoint := &hcsshim.HNSEndpoint{
Name: epName,
VirtualNetwork: hnsNetwork.Id,
DNSServerList: strings.Join(dnsServer, ","),
DNSSuffix: strings.Join(dnsSuffix, ","),
MacAddress: mac,
IPAddress: net.ParseIP(ipv4),
IPv6Address: net.ParseIP(ipv6),
}
endpoint.GatewayAddress, endpoint.GatewayAddressV6 = util.SplitStringIP(gateway)
for _, s := range strings.Split(ip, ",") {
_, network, err := net.ParseCIDR(s)
if err != nil {
return nil, err
}
if ones, bits := network.Mask.Size(); bits == 128 {
endpoint.IPv6PrefixLength = uint8(ones)
} else {
endpoint.PrefixLength = uint8(ones)
}
}
return endpoint, nil
})
if err != nil {
klog.Errorf("failed to add HNS endpoint: %v", err)
return err
}
if containerID != sandbox {
// pause container, return here
return nil
}
// add OVS port
exists, err := ovs.PortExists(epName)
if err != nil {
klog.Error(err)
return err
}
if exists {
return nil
}
timeout := 5
adapterName := fmt.Sprintf("vEthernet (%s)", epName)
for i := 0; i < timeout; i++ {
adapter, _ := util.GetNetAdapter(adapterName, true)
if adapter == nil {
time.Sleep(time.Second)
continue
}
_mtu := uint32(mtu)
if err = util.SetNetIPInterface(adapter.InterfaceIndex, nil, &_mtu, nil, nil); err != nil {
klog.Errorf("failed to set MTU of %s to %d: %v", adapterName, mtu, err)
return err
}
ifaceID := ovs.PodNameToPortName(podName, podNamespace, provider)
ovs.CleanDuplicatePort(ifaceID, epName)
output, err := ovs.Exec(ovs.MayExist, "add-port", "br-int", epName, "--",
"set", "interface", epName, "type=internal", "--",
"set", "interface", epName, fmt.Sprintf("external_ids:iface-id=%s", ifaceID),
fmt.Sprintf("external_ids:pod_name=%s", podName),
fmt.Sprintf("external_ids:pod_namespace=%s", podNamespace),
fmt.Sprintf("external_ids:ip=%s", ipAddr))
if err != nil {
return fmt.Errorf("failed to add OVS port %s, %v: %q", epName, err, output)
}
if err = ovs.SetInterfaceBandwidth(podName, podNamespace, ifaceID, egress, ingress); err != nil {
return err
}
return nil
}
return fmt.Errorf(`failed to get network adapter "%s" after %d seconds`, adapterName, timeout)
}
func configureNic(name, ip string, mac net.HardwareAddr, mtu int) error {
adapter, err := util.GetNetAdapter(name, false)
if err != nil {
klog.Errorf("failed to get network adapter %s: %v", name, err)
return err
}
// we need to set mac address before enabling the adapter
if newMac := mac.String(); !strings.EqualFold(newMac, adapter.MacAddress) {
if err = util.SetAdapterMac(name, mac.String()); err != nil {
klog.Error(err)
return err
}
}
if adapter.InterfaceAdminStatus != 1 {
if err = util.EnableAdapter(name); err != nil {
klog.Error(err)
return err
}
}
interfaces, err := util.GetNetIPInterface(adapter.InterfaceIndex)
if err != nil {
klog.Errorf("failed to get NetIPInterface with index %d: %v", adapter.InterfaceIndex, err)
return err
}
addresses, err := util.GetNetIPAddress(adapter.InterfaceIndex)
if err != nil {
klog.Errorf("failed to get NetIPAddress with index %d: %v", adapter.InterfaceIndex, err)
return err
}
// set MTU
for _, iface := range interfaces {
if uint32(mtu) != iface.NlMtu {
_mtu := uint32(mtu)
if err = util.SetNetIPInterface(iface.InterfaceIndex, &iface.AddressFamily, &_mtu, nil, nil); err != nil {
klog.Error(err)
return err
}
}
}
addrToAdd := make(map[string]interface{})
for _, addr := range strings.Split(ip, ",") {
addrToAdd[addr] = true
}
addrToDel := make(map[string]interface{})
for _, addr := range addresses {
// handle IPv6 address, e.g. fe80::e053:1757:f000:be40%47
addr.IPAddress = strings.TrimSuffix(addr.IPAddress, fmt.Sprintf("%%%d", addr.InterfaceIndex))
ip := net.ParseIP(addr.IPAddress)
if ip == nil {
klog.Warningf("found invalid IP address %s on interface %s", addr.IPAddress, name)
continue
}
if ip.IsLinkLocalUnicast() {
// skip 169.254.0.0/16 and fe80::/10
continue
}
s := fmt.Sprintf("%s/%d", addr.IPAddress, addr.PrefixLength)
if _, ok := addrToAdd[s]; ok {
delete(addrToAdd, s)
} else {
addrToDel[s] = true
}
}
for addr := range addrToDel {
if err = util.RemoveNetIPAddress(adapter.InterfaceIndex, addr); err != nil {
return err
}
}
for addr := range addrToAdd {
if err = util.NewNetIPAddress(adapter.InterfaceIndex, addr); err != nil {
return err
}
}
return nil
}
func (csh cniServerHandler) deleteNic(podName, podNamespace, containerID, netns, deviceID, ifName, nicType string) error {
epName := hns.ConstructEndpointName(containerID, netns, util.HnsNetwork)[:12]
// remove ovs port
output, err := ovs.Exec(ovs.IfExists, "--with-iface", "del-port", "br-int", epName)
if err != nil {
return fmt.Errorf("failed to delete ovs port %s: %v, %q", epName, err, output)
}
return hns.RemoveHnsEndpoint(epName, netns, containerID)
}
func generateNicName(containerID, ifname string) (string, string) {
if ifname == "eth0" {
return fmt.Sprintf("%s_h", containerID[0:12]), fmt.Sprintf("%s_c", containerID[0:12])
}
return fmt.Sprintf("%s_%s_h", containerID[0:12-len(ifname)], ifname), fmt.Sprintf("%s_%s_c", containerID[0:12-len(ifname)], ifname)
}
func waitNetworkReady(nic, ipAddr, gateway string, underlayGateway, verbose bool, maxRetry int) error {
ips := strings.Split(ipAddr, ",")
for i, gw := range strings.Split(gateway, ",") {
src := strings.Split(ips[i], "/")[0]
if !underlayGateway || util.CheckProtocol(gw) == kubeovnv1.ProtocolIPv6 {
if err := pingGateway(gw, src, verbose, maxRetry); err != nil {
return err
}
}
}
return nil
}
func configureNodeNic(portName, ip, gw string, macAddr net.HardwareAddr, mtu int) error {
ipStr := util.GetIpWithoutMask(ip)
raw, err := ovs.Exec(ovs.MayExist, "add-port", "br-int", util.NodeNic, "--",
"set", "interface", util.NodeNic, "type=internal", "--",
"set", "interface", util.NodeNic, fmt.Sprintf("external_ids:iface-id=%s", portName),
fmt.Sprintf("external_ids:ip=%s", ipStr))
if err != nil {
klog.Errorf("failed to configure node nic %s: %v, %q", portName, err, raw)
return fmt.Errorf(raw)
}
if err = configureNic(util.NodeNic, ip, macAddr, mtu); err != nil {
return err
}
// ping ovn0 gw to activate the flow
klog.Infof("wait ovn0 gw ready")
if err := waitNetworkReady(util.NodeNic, ip, gw, false, true, gatewayCheckMaxRetry); err != nil {
klog.Errorf("failed to init ovn0 check: %v", err)
return err
}
return nil
}
// If OVS restart, the ovn0 port will down and prevent host to pod network,
// Restart the kube-ovn-cni when this happens
func (c *Controller) loopOvn0Check() {
// no need to check ovn0 on Windows
}
func (c *Controller) loopOvnExt0Check() {
// no need to check ovnext0 on Windows
}
func configureMirrorLink(portName string, mtu int) error {
adapter, err := util.GetNetAdapter(portName, false)
if err != nil {
klog.Errorf("failed to get network adapter %s: %v", portName, err)
return err
}
if adapter.InterfaceAdminStatus != 1 {
if err = util.EnableAdapter(portName); err != nil {
klog.Error(err)
return err
}
}
interfaces, err := util.GetNetIPInterface(adapter.InterfaceIndex)
if err != nil {
klog.Errorf("failed to get NetIPInterface with index %d: %v", adapter.InterfaceIndex, err)
return err
}
// set MTU
for _, iface := range interfaces {
if uint32(mtu) != iface.NlMtu {
_mtu := uint32(mtu)
if err = util.SetNetIPInterface(iface.InterfaceIndex, &iface.AddressFamily, &_mtu, nil, nil); err != nil {
klog.Error(err)
return err
}
}
}
return nil
}
func configProviderNic(nicName, brName string) (int, error) {
// nothing to do on Windows
return 0, nil
}
func removeProviderNic(nicName, brName string) error {
// nothing to do on Windows
return nil
}
func turnOffNicTxChecksum(nicName string) error {
// TODO
return nil
}
func getShortSharedDir(uid types.UID, volumeName string) string {
// DPDK is not supported on Windows
return ""
}